1970UL 1004-9-2021 UL Standard for Safety Form Wound and Medium Voltage Rotating Electrical Machines
2016UL 1004-9-2016 UL Standard for Safety Form Wound and Medium Voltage Rotating Electrical Machines (First Edition; Reprint with revisions through and including February 2@ 2018)
2015UL 1004-9 BULLETIN-2015 UL Standard for Safety Form Wound Medium Voltage Motors (COMMENTS DUE: DECEMBER 14@ 2015)